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99 lines
2.6 KiB
99 lines
2.6 KiB
/* |
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* Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVUTIL_X86_INTREADWRITE_H |
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#define AVUTIL_X86_INTREADWRITE_H |
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#include <stdint.h> |
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#include "config.h" |
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#include "libavutil/attributes.h" |
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#if HAVE_MMX |
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#if !HAVE_FAST_64BIT && defined(__MMX__) |
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#define FF_COPY_SWAP_ZERO_USES_MMX |
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#define AV_COPY64 AV_COPY64 |
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static av_always_inline void AV_COPY64(void *d, const void *s) |
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{ |
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__asm__("movq %1, %%mm0 \n\t" |
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"movq %%mm0, %0 \n\t" |
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: "=m"(*(uint64_t*)d) |
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: "m" (*(const uint64_t*)s) |
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: "mm0"); |
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} |
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#define AV_SWAP64 AV_SWAP64 |
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static av_always_inline void AV_SWAP64(void *a, void *b) |
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{ |
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__asm__("movq %1, %%mm0 \n\t" |
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"movq %0, %%mm1 \n\t" |
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"movq %%mm0, %0 \n\t" |
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"movq %%mm1, %1 \n\t" |
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: "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b) |
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::"mm0", "mm1"); |
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} |
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#define AV_ZERO64 AV_ZERO64 |
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static av_always_inline void AV_ZERO64(void *d) |
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{ |
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__asm__("pxor %%mm0, %%mm0 \n\t" |
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"movq %%mm0, %0 \n\t" |
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: "=m"(*(uint64_t*)d) |
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:: "mm0"); |
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} |
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#endif /* !HAVE_FAST_64BIT && defined(__MMX__) */ |
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#ifdef __SSE__ |
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#define AV_COPY128 AV_COPY128 |
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static av_always_inline void AV_COPY128(void *d, const void *s) |
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{ |
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struct v {uint64_t v[2];}; |
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__asm__("movaps %1, %%xmm0 \n\t" |
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"movaps %%xmm0, %0 \n\t" |
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: "=m"(*(struct v*)d) |
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: "m" (*(const struct v*)s) |
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: "xmm0"); |
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} |
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#endif /* __SSE__ */ |
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#ifdef __SSE2__ |
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#define AV_ZERO128 AV_ZERO128 |
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static av_always_inline void AV_ZERO128(void *d) |
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{ |
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struct v {uint64_t v[2];}; |
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__asm__("pxor %%xmm0, %%xmm0 \n\t" |
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"movdqa %%xmm0, %0 \n\t" |
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: "=m"(*(struct v*)d) |
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:: "xmm0"); |
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} |
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#endif /* __SSE2__ */ |
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#endif /* HAVE_MMX */ |
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#endif /* AVUTIL_X86_INTREADWRITE_H */
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